Tube sockets for printed circuits



Sept. 28, 1954 M. BARTON, JR

'russ SOCKET FOR PRINTED cmcurrs Original Filed Dec. 20, 1948 FIG. 4

mmvron H. M. BARTON, JR.

ATTORNEYS Reissued Sept. 28, 1954 'TUBE socxa'rs Fon PRINTED omcurrs Hugh M. Barton, Jr., Bartlesville, kla., assignor to Phillips Petroleum Company, a corporation oi. Delaware Original No. 2,569,550, dated October 2, 1951-,

Serial No. 66,288, December 20, 1948. Application for reissue January 10, 1952, Serial No.

, 7 Claims. (Cl. 339-47) Matter enclosed in heavy brackets appears in the original patent but forms no part of this reissue specification; matter printed in italics indicates the additions made by reissue.

This invention relates to a tube socket which is particularly adapted for use ratus embodying printed e ectronlc circuits.

Heretofore, in using tube sockets in connection with printed electronic circuits, diiilculties have been encountered in making connections to the tube electrodes, particularly when an electrically shock-proof mounting for the tube is desired.

It is an object of this invention to provide a tube socket for printed electronic circuits which may be rapidly riveted in position upon a chassis without the necessity of connecting leads thereto.

It is a further object of the invention to provide a novel shock-proof mounting for such a tube socket.

It is a still further object 01 this invention to provide a tube socket for printed electronic circuits which is simple in construction, reliable, and easy to assemble in position .upon a chassis.

Various other objects, advantages and features of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

Figure 1 is a bottom view oi the tube socket mounted upon a chassis; v

Figure 2 is a sectional view taken upon the lines 2-2 of Figure 1;

' and Figure 4 is a sectional view taken along the lines 44 of Figure 3.

Referring now to the drawings in detail, and particularly to Figure 1, I have shown a socket on chassis 5 of the type used in coniunction with printed electronic circuits. This chassis is provided with an opening 6 oi proper dimensions to receive a tube socket l and leads 8 are printed on the underside of the chassis, each lead terminating in an enlarged circular portion 9 adjacent the opening 6, in position for connection to the tube electrodes. The leads 8 are formed from fine particles of conductive material which are in intimate engagement with the base 5 and, in effect, these leads form a part of the base after they are printed or otherwise formed thereon.

The tube socket I has a central opening II for receiving the guiding pin of an electron tube, not shown, and a series of jacks II of conductive metal are spaced around the opening H for connection to the electrodes of a tube through its base prongs. A lug I3 is mounted in the socket in electrical connection with each of the jacks it, these legs being formed from flat strips of conductive metal 1 and extending radially from the tube socket. The end portion ll of each lug may be slightly enlarged and each such end portion has an opening with electrical appapositioned directly beneath one of the circular portions 8 of the printed conductors 8. Each lug is riveted to the corresponding conductor portion 8 by a rivet I5, thereby forming a positive electrical connection between the printed conductor and the corresponding tube electrode.

The tube socket 1 is resiliently mounted upon the base so as to prevent microphonic noises and other disturbances resulting from jarring or shock of the chassis and the electronic tubes carried thereby. To this end, the base of the tube socket has a flange l1 formed thereon which is adapted to engage the undersideoi the chassis 5 and a circumierential slot i8 is formed in the upper portion 01' the tube socket to receive an interior flanged portion IQ of a split resilient retaining ring 20. The circumferential region of the retaining ring is dished, as indicated at 2 l, and this dished portion fits over the rivets I5 to prevent short circuits therebetween and to prevent shocks resulting from touching the rivets. The ring also rigidly supports the socket upon the chassis.

It will be apparent that the socket may be read-- ily assembled upon the chassis merely byinserting it upwardly through the opening 6 until flange l1 engages the underside of the chassis 5. Thereupon, split retainer ring 20 is snapped into position within the slot iii to provide a convenient shock-proof mounting for the socket. The lugs it are then riveted to the conductors B to provide rapid and convenient electrical connections to the tube electrodes withoutv the necessity of soldering leads or otherwise connecting the tube electrodes to the conductors. As a result, the socket is particularly adaptable for use in electronic devices embodying printed electrical circuits. In some cases, where protection against electrical shocks is not required, the dished portion 21 may be of reduced size and engageable with the base interiorly of the rivets l5.

While the invention has been described in connection witha" present, preferred embodiment thereof, it is to be' understood that this description is illustrative only and is not intended to limit the invention, the scope of which is defined by the appended claims.

I claim:

1. The combination, with a flat base of insulating material having an opening formed therein for receiving a tube socket, and leads printed en said base for connection to the tube electrodes, of

' a tube socket of insulating material having a flanged base engageable with the lower side of said insulating base, a plurality of Jacks of conductive material in said socket each adapted to receive a tube prong, a conductive lug secured to each Jack and extending radially from said tube socket, a rivet for securing the outer end of each lug to said base in contact with one oi said printed leads [conductors], a circumferential slot formed in the upper part of said socket. and a split retainer ring of resilient material having a dished outer portion engageable with the upper side of s base to cover the exposed portions of said rivets and an interior flange fitting into said slot to resiliently hold the socket in position upon the base, each lug having a hole formed therein at the proper distance from said tube socket as to underlie the dished portion of said ring and the terminal portion of a printed lead.

2. The combination, with a flat base insulating material having an opening iormed therein for receiving a tube socket, and leads printed on said base for connection to the tube electrodes,

ing radially from said tube socket, a conductive member for securing the outer end of each lug to said base in contact with one of said conduc each lead terminating in an enlarged circular portion adjacent said opening, of a tube socket of insulating material having a flanged base engageable with the lower side of said base, a plurality of jacks of conductive material in said socket, each adapted to receive a tube prong, a flat elongated conductive lug secured to, each 'jack and extending radially from said tube socket, each lug terminating in a flat end portion positioned adjacent one oi said. circular portions, a rivet for securing each end portion to one of said circular [conductor] portions, and a split retainer ring oi resilient material having a dished outer portion engageable with the upper surface of said base and an interior flange adapted to fit into a slot formed in the upper end of the tube socket, each lug having a hole formed in said flat end portion at the proper distance from said tube socket as to underlie the dished portion of said ring and the circular portion of one of said printed leads [said ring resiliently holding the socket in position upon the base and covering the exposed portions of said rivets] 3. The combination, with a flat base of insulating material having an opening formed therein for receiving a tube socket, and leads for connection to the tube electrodes, of a tube socket oi insulating material having a flanged base engageable with the lower side of said insulating base, a plurality of Jacks of conductive material in said socket each adapted to receive a tube prong, a conductive lug secured to each jack and extending radially from said tube socket, a conductive member for securing the outer end of each lug to said base in contact with one of said leads [conductors], a circumferential slot formed in the upper part of said socket, and a split retainer ring of resilient material having a dished outer portion engageable with the upper side 01' said base [to cover the exposed portions of said conductive members] and an interior flange fitting into said slot to resiliently hold the socket in position upon the base, each lug having a hole formed therein at the proper distance from said tube socket as to underlie the dished portion of said ring and the terminal portion of one of said leads.

4. The combination, with a flat base of insulating material having an opening formed therein for receiving a tube socket, and leads for connection to the tube electrodes, of a tube socket of inors, a circumferential slot formed in the upper part of said socket, and means for securing said socket in position within said opening, said lastmentioned means including a split retainer ring 0] resilient material having a dished outer portion engageable with the upper side of said base and an interior flange fitting into said slot, each lug having a hole formed therein at the proper distance from said tube socket as to underlie the dished portion of said ring.

5. In combination, a flat base of insulating material having an opening formed therein for receiving a tube socket, leads printed on said base for connection to the'tube electrodes, said leads terminating a short distance from said opening, and said base having holes formed therein and extending tiserethrough at the terminal portions of the respective leads, a tube socket of insulating material having a flanged base engaging the lower side of said insulating base, a plurality of a'acks of conductive material in said socket each adapted to receive a tube prong, a conductive lug secured to each y'ack and extending radially from said tube socket, each lug having a hole formed therein registering with a corresponding hole formed in said insulating base, a rivet extending sulating material disposed within said opening, a

through the hole in each lug and the corresponding hole in said insulating base, said rivet securing the outer end of a lag to said base in contact with one of said printed leads, a circumferential slot formed in the upper part of said socket, and a split retainer ring of resilient material having a dished outer portion engaging the upper side of said base and covering the exposed portions of said rivets together with an interior flange fitting into said slot to hold the socket in position upon the base.

6. The combination, with a flat base of insulating material having an opening formed therein for receiving a tube socket, leads printed on said base for connection to the tube electrodes, said leads terminating a short distance from said opening, and said base having holes f rmed therein and extending therethrough which register with the respective terminal portions of said printed leads, said terminal portions having an enlarged circular configuration, a tube socket of insulating material having a flanged base engaging the lower side of said insulating base, a plurality of jacks of conductive material in said socket, each adapted to receive a tube prong, a flat elongated conductive lug secured to each and extending radially [mm the tube socket, each lug terminating in a flat end portion positioned adiacent one of said circular portions and having a hole formed therein registering with one of the holes in said insulating base, a rivet for securing each end portion to one of said circular conductive portions, each rivet ertend'ng through the hole in the associated lug and the hole registering therewith in said insulating base, and a split retainer ring of resilient material having dished outer portion engaging the upper surface of said base and an interior flange fitting into a slot formed in the upper end of the tube socket, said ring holding the socket in position upon the base and covering the exposed portions of said rivets.

7. The combination, with a flat base of insulating material having an opening formed therein for receiving a tube socket, leads for connection to the tube electrodes terminating a short disour? ' 5 tunes from said opening, and holes formed in and extending through said insulating base adiacent the respective terminal portions of said leads, a tube socket of insulating material disposed within the opening in said base, a plurality of jacks a conductive material in said socket each adapted to receive a tube prong, a conductive lug secured to each jack and extending radially from said tube socket, each lug having a hole formed in the outer end thereof registering with a corresponding hole formed in said insulating base, a conductive member for securing the outer end of each lug to said base in contact with one of said leads, each conductive member extending through a hole in the associated lag and the corresponding hole in said insulating base, a circumferential slot formed in the upper part of said socket, and means for securing said socket to said base, said last-mentioned means including a split retainer ring of resilient material having a dished outer portion engaging the upper side of said base to cover the exposed portions of said conductive members-Ind an interior flange fitting into said circumferential slot.

5 Number Number use... Cited in the file of this patent or the original patent UNITED STATES PATENTS Name Date Meuer Dec. 30, 1930 Puller Apr. 14, 1931 Alden Oct. 27, 1936 Arlt Jan. 5, 1937 Schmitt July 20, 1937 Barber Mar. 10, 1942 Henderson Aug. 9, 1943 Eider May 25, 1948 Sargrove July 5, 1949 FOREIGN PATENTS Country Date Australia Jan. 6, 1944 Great Britain Sept. 24, 1930 France Apr. 14, 1930 

